The parents of a Chinese teenager who scratched his name into a 3,500-year-old Egyptian artwork have apologised for his actions after internet users tracked down the boy to name and shame him.

The 15-year-old, from Nanjing, was identified after a photo of his graffiti – which said “Ding Jinhao was here” in Mandarin – at the Temple of Luxor was posted online on Friday.

A microblogger named Shen, who visited the temple on the banks of the River Nile three weeks ago, cited the graffiti as an example of shameful behaviour by Chinese tourists abroad. The posting attracted a torrent of replies, including suggestions that the perpetrator be tracked down.